Number of JVMs

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How many JVMs are there?

55.

Despite the lack of comprehensive information on the actual amount of Java virtual machines (JVMs) currently available, estimates present at least 55 JVMs: 23 of them being proprietary implementations and 32 free/open source implementations. Sun Microsystems, developer of the Java platform, reports on their website that JVM implementation has reached 4.5 billion devices.

 

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